Read Edit View history 镭 léi radium Origin Definitions Defs Strokes Stroke Words Sentences Sents created sense approved 镭/鐳 · léi · radium 2026/03/04 镭 / 鐳 léi radium radium (chemistry) 镭是一种具有高度放射性的化学元素。 noun created sense Mar 4, 2026, 02:25 AM